TerraTex
SD is
a nonwoven geotextile made up of polypropylene fibers.
These fibers are needled to form a stable and durable network
such that the fibers retain their relative position. It is non-biodegradable
and resistant to most soil chemicals, acids and alkali with a
ph range of 3 to 12. TerraTex SD is manufactured to meet
or exceed the following minimum average roll values: